<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>验证diff算法</title>
    </head>
    <body>
        <!-- 准备好一个“容器” -->
        <div id="test"></div>

        <!-- 引入react核心库 -->
        <script type="text/javascript" src="../js/17.0.1/react.development.js"></script>
        <!-- 引入react-dom，用于支持react操作DOM -->
        <script type="text/javascript" src="../js/17.0.1/react-dom.development.js"></script>
        <!-- 引入babel，用于将jsx转为js -->
        <script type="text/javascript" src="../js/17.0.1/babel.min.js"></script>

        <script type="text/babel">
            class Time extends React.Component {
                state = {date: new Date()}

                componentDidMount() {
                    setInterval(() => {
                        this.setState({
                            date: new Date()
                        })
                    }, 1000)
                }

                render() {
                    return (
                        <div>
                            <h1>hello</h1>
                            <input type="text"/>
                            <span>
							现在是：{this.state.date.toTimeString()}
                                <input type="text"/>
						</span>
                        </div>
                    )
                }
            }

            ReactDOM.render(<Time/>, document.getElementById('test'))
        </script>
    </body>
</html>
